Percussion-fuse.



C. PUFF.

PERCUSSION FUSE. APPLIOATIONPILED JAN.4,190'1.

Patentedqan. 26, 1909.

2 BEBBTBPBHEET 1.

WIT/VSSES.I

` 0.PUPP. PEEOUSSIGN FUSE. APPLIUATION FILED JAN. 4, 1907.

Patented Jan. 26, 1909.

2 SHEETS-SHEET 2.

WITNESSE'S fuse, and t CARL PUFF, OF SPANDAU, GERMANY.

PERCUSSION-FUSE.

. `Specification of Letters Patent.

APatented Jan. 26 1909.

Applicativi mea xamiarys, 1907.' serial No.4 350,810.`

To all whom it may concern:

Be it known that I, CARL PUFF, engineer, a subject of ne King of Prussia, residing at Spandau, Lindenui'er No.. 32, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements Relating to or Connected with Percussion-Fuses,

of which the following is a full, clear, and exact description.

This invention relates to that class of percussion fuses or double acting fuses in Which the riming part of the percussion herefore the bursting charge of the projectile, is exploded according to t'he adjustment of the fuse, leither directly on the impact of the projectile, or the. ignition of the bursting charge is by means of a mechanical device provided for that. layed until the projectile has penetrated into the object it was aimed at, for the purpose of obtaining amining effect. The characteristic feature of this fuse consists in that a retarding device, operated by altering the position of or connecting or disconnecting anysuitable part of the fuse, is arranged in the fuse,which, with delayed ignition, holds the i tion parts (generally ma needle) apart from,

a percussion cap an each other until the proj ectlle has penetrated a certain distance into the object at which it Was aimed, and only then the ignition parts, by impact, frictionor other means (in certain circumstances even electrical means) eiect the delayed ignition. The retardingdevice is disconnected if the projectile is tobe detonated immediately on encountering the object aimed at.

Now the present invention has for its object the improved construction of a fuse in which the ignition parts, which` areV held locked by means of any suitable connectible and disconnectible locking or checking means and released on the impact of the projectile, are exposed to spring pressure or ever power; furthermore the arrangement is preferably such that the locking devices are arranged on the ignition part and, by the displacement of a suitable fuse part, can be brought into such a position that they engage With a fuse part ex osed to spring pressure, if the ignition part Ihas to be ignited by the striking effect of the spring and has to ignite after a certain delay.

ln the accompanying drawings, Figure 1 is a longitudinal section of a percussion fuse constructed according .to the present inobj ect.

vwith recesses h? 'the.part c according to special mar vention and parts after firing of the projectile and previous to striking the mark. Fig. 2 is a similar view to Fig. 1 illustrating' the positions of the parts after the projectile hasstruck the Fig. 3 is a longitudinal section of part of the fuse with the'iiring bolt turned to a position at right angles to that shown' at Fig. 1 and Fig'. 4 is a transverse section taken on the line A-B of Fig. l. Fig. 5

illustrating the positions of the is a longitudinal-section with the parts in their initial position.

In the several figureslike parts are in- 'dicated by similar letters of reference.

The firing bolt t is rotatively arranged in the-casing a and in the normal position of' the parts is secured against longitudinal movement by spring armse: or detents 7c provided with lugs or shoulders c and emraced by a ring The rectangular needlec1 projects through the screw cap b into the iiring bolt t-Which needle is iiXed with the rotatable adjusting part c. The ring f and 4the socket or'sleeve h are arranged in 8o lthe casing a in such manner as to be longitudinally displaceable. l

The ring and the socket or sleeve h are pressed forward by the spring i' and the sleeve h is provided on its interior surface (Figui) in which the'pawl like spring tongues s (Fig. 3) mounted upon the ring bolt t, engage, when by adjistin an lines arranged n the fuse, therectangular needle cl and the firing bolt t rotatively connected with it is so turned, that the pawl like tongues s arranged on the firing bolt are situated opposite the recesses h1. The s ring 1l (Fig. 3) tends to drive forward the paw like arms s and the firing bolt t together with thesocket or sleeve h so that the percussion ca m iiies against the needle c1 and is explode but the ing bolt t is prevented from longitudinal movement by the arms or detents k with their shoulders k1 as long as the ring f remains in its position. (Fig. l).

VBefore the projectile is fired the parts are in the position shown in Fi 5, in which position the sleeve h is held iXed by pins e of copperor other soft metal. A disk d having arms d1 is also in the position shown in Fig. 5. Just before firing `the disk d is turnedso that its pins d1 are opposite notches in the ring f, so that this ring can move forwardl when the projectile. strikes the niark as will r be described.

the ring fan tion charge whic armed sprin ment, press the noses When the projectile is fired the inertia, of sleeve 71, is suHicient to cause these parts to move backward relatively to the body of the fuse which they do until the i sleeve h is caught by the pawl like tongues s. The position of the arts is then as indicated in Fig. 1'. When t e projectile reaches the mark the ring f iies forwardly as shown in Fig. 2, thus permitting the spring arms or detents k to move laterally so that their shoulders cl release the firing bolt t. This permits the sleeve h tomove forwardly under the expansion of its spring i, carrying with it the firing bolt t by reason of the fact that the pawl like tongues s iixed to the firing bolt are still engaged by the ring h, sov that the firing bolt t is thrust forwardly by the spring.

This retardation corresponds to the time which elapses until the above described movements have been completed, during this time however the projectile penetrates deeper into tlie ob'ect and is detonated within the object itself If the firing is to be effected Without retardation, the pawl like tongues s are so adj usted by turning the part c that they are not situated o posiite the recesses h1 but op osite the sinoot walls of the 'sleeve or soc et h. The pawl like tongues s cannot then hold the sleeve or socket h in the retracted position but it'is pushed forward with the ring f by means of the s ring i during the flight of the prrjectile, so tliat the firing bolt ,t is released an is not prevented from igniting the cap on the implact of the projectile. j

In t e present form of construction -the percussion cap 1h is arranged in the movable part but it can alternatively be arranged in the fixed part as will be readily understood.

The invention referably includes an igniis adapted to move forwardly in the fuse so that it surrounds an exploding ca sule o. yThe capsule o is held in a centrally ocated member r, and the ignition charge g is contained within a cylindrical case surrounding the member 1 and normally held in the position shown in Figs. 1 and 5. It is held in this position by a twowhich is preferably connected to the cylin rical case, which is formed with noses p1 en a ing notches or recesses g3 in the body o lt e fuse. The ring f has connected with it at opposite pointstwo throwout rods g which lie along thejinner sides of the fuse Wall and which are provided with pointed ends normally lying between the noses p1 of the spring p. Upon firing the projectile as the ring f moves rearwardly, thev throw-olf rods g, which partake'of this movel of engagement with tlife recesses g3. This movement continues until the shoulders g2 formed on the rods pass the rear of the spring p in which position the ring f and ignition charge g are connected together. The rods notches g3 when the shoul of the spring p outy g are of greater thickness.v forwardly" of the noses ug2 than at their points, so that the noses p1 are held' out of en agement with the ders g2 pass behind them. j "fm When the mark is reached by the projectile and the ring f ilies 0H, the ignition charge ghmoves forwardly with'it to the position s own in Fig. 2, so that when the percussion cap m and exploding capsule o are fired the ignition charge is in-proper position.

When no retarding effect is desired, and the parts are adjusted so that the pawl like tongues s are out of position as hereinbefore described, the springt, which in this case presses botli the sleeve h and the ring f forwardly, acts through the ring to move the ignition charge g forwardly during the iiight of the proj ectile. When the mark is reached, the iiring bolt t,'which has theretofore retained its initial position., is moved forwardlyv by its inertia, firing the cap m. v

The pawl like tongues s which in the present form of construction always press out-- Ward with spring action, might also be so `arranged in the firing bolt t that they are irst pressed outward by shoulders arranged on the rotary needle clwhen it is desired to fire with retardation.

What I claim as my invention, and desire to secure by Letters Patent is: y

1. A percussion fuse having a' firing part adapted to be actuatedby impact, means for i retarding the operation of suchpart forl a period of time after impact, and means for throwing such retarding means out of operation, whereby said` fuse may act directly, upon impact.

2. In a percussion fuse, means for firing l the fuse by impact, and a mechanically acting retarding device adapted to delay t e firing of the fuse for a period of time after impact, such retarding device being adapted to be connected or disconnected beforeiiring. 3. In a percussion fuse, means for firing the fuse by impact, a mechanically acting retarding device' adapted to dela the firing of the fuse for a period of time a ter impact, such retarding device being adapted to/ be connected or disconnected before firing, and an i niting charge adapted to' be moved forwar 1y into position after the pro ectile isred. 4. A fuse having a firing bolt, means for holding such bolt in fixed position', a/ring adapted to release such means, a springcontrolled sleeve, and catches connected With the firing bolt adapted to hold said ,sleeve in retracted position.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. l J i CARL PUFF.

Witnesses:

WOLDEMAR HAUPT,

HENRY HAsPER. 

